Patients who experience sudden swelling and itching of the ears may be caused by frostbite, eczema of the external auditory canal, contact dermatitis, and so on.
1. Frostbite: when the patient is in a too cold environment for a long time, it may lead to frostbite on the auricle, earlobe and other parts of the ear, and the patient is conscious of itchiness and swelling, and the symptoms are aggravated by heat.
2. Eczema of the external auditory canal: Eczema of the external auditory canal is a kind of polymorphic rash that occurs in the external auditory canal and its surrounding skin, which is mainly manifested as diffuse redness, erythema, papules, blisters and other lesions, accompanied by itchiness, tingling and other symptoms, and when combined with bacterial infection, there may be swelling of the ears.
3. Contact dermatitis: contact dermatitis is mainly due to skin contact with certain exogenous substances, such as hand sanitizer, detergent, skin care products, pollen, etc., resulting in contact with the site of the inflammatory reaction, the main clinical manifestations of the affected areas of itching, burning, swelling and pain, etc., the ear suddenly swollen itchy may be caused by contact dermatitis.
It is recommended that the patient timely medical examination, clear causes for targeted treatment, pay attention to ear care in life, avoid scratching the affected area, if there is any abnormality timely medical treatment.